This video discusses properties of the confidence interval for a population proportion -based on the normal distribution. 00:00 point estimate 01:05 confidence interval 01:28 standard error, critical value 02:29 calculating standard error 02:43 constructing confidence interval 03:52 interpretation of confidence interval 04:36 94% and 97% confidence intervals 05:52 confidence level, sample size, and width Related videos: Solved Proportion Test Problem: One-tailed vs. Two-tailed tests: Hypothesis Test for Proportion: One-sided CI: